#include<stdio.h>

int main()
{
	int v = 0;
	printf("请输入水的体积(ml):");
	scanf("%d", &v);
	int bottle = v / 500; 
	if(v % 500 != 0)
	{
		bottle++;
		printf("能装%d瓶\n",bottle);
	}
	else
	printf("能装%d瓶\n",bottle);
	return 0;
}
